Christina Cowger

Estimated Yield Reductions and Economic Losses on Wheat Caused by Disease from 2018 Through 2021

Friskop, A. J., Sisson, A. J., Allen, T. W., Andersen-Onofre, K. F., Aoun, M., Bergstrom, G. C., … Wiersma, J. J. (2025, January 1). Plant Health Progress, Vol. 7.

Etiological Agents of Fusarium Crown Rot in Illinois Wheat

Laraba, I., Vaughan, M. M., McCormick, S., Busman, M., Cowger, C., Oppenheimer, P. J., … Whitaker, B. K. (2025, March 22). Plant Disease.

Synthetic spike-in metabarcoding for plant pathogen diagnostics results in precise quantification of copy number within the genus Fusarium

Oppenheimer, P., Tini, F., Whetten, R., Laraba, I., Read, Q., Whitaker, B., … Cowger, C. (2025, January 1). ISME Communications, Vol. 5.

Virulence and molecular characterization of Blumeria graminis isolates from wheat fields across Ontario

Liu, M., Lim, S., Shoukouhi, P., Xue, A. G., Chen, Y., Burt, A. J., … Mccallum, B. (2025, April 2). Canadian Journal of Plant Pathology, Vol. 4.

Multiple routes to fungicide resistance: Interaction of Cyp51 gene sequences, copy number and expression

Arnold, C. J., Hahn, E. A., Whetten, R., Chartrain, L., Cheema, J., Brown, J. K. M., & Cowger, C. (2024, September 1). Molecular Plant Pathology, Vol. 25.

Registration of ‘FL16045‐25’: An early‐maturing, high‐yielding, disease‐resistant soft red facultative wheat cultivar for the southern United States

Babar, M. A., Khan, N., Blount, A., Barnett, R. D., Harrison, S. A., DeWitt, N., … Mailhot, D. (2024, April 8). Journal of Plant Registrations, Vol. 4.

Registration of ‘GA09436‐16LE12’: A new soft red winter wheat cultivar adapted to the US southeast region

Mergoum, M., Johnson, J. W., Sutton, S., Lopez, B., Bland, D., Buck, J. W., … Cowger, C. (2024, December 4). Journal of Plant Registrations, Vol. 19.

Approaching 25 years of progress towards Fusarium head blight resistance in southern soft red winter wheat (Triticum aestivum L.)

Boyles, R. E., Ballén‐Taborda, C., Brown‐Guedira, G., Costa, J., Cowger, C., DeWitt, N., … Winn, Z. J. (2023, August 10). Plant Breeding, Vol. 8.

Effects of Host and Weather Factors on the Growth Rate of Septoria nodorum Blotch Lesions on Winter Wheat

Adhikari, U., Brown, J., Ojiambo, P. S., & Cowger, C. (2023, May 6). Phytopathology.

Manipulating the plant mycobiome to enhance resilience: Ecological and evolutionary opportunities and challenges

Hawkes, C. V., Allen, X., Balint-Kurti, P., & Cowger, C. (2023, December 14). (M. A. Jabra-Rizk, Ed.). PLoS Pathogens, Vol. 19.

Optimal Timing of Fungicide Application to Manage Fusarium Head Blight in Winter Barley

Cowger, C., Read, Q. D., Clark, L., & Dong, Y. (2023, April 11). Plant Disease, Vol. 4.

Two pathogen loci determine Blumeria graminis

New Phytologist, 238(4), 1546–1561.

A new soft red winter wheat cultivar ‘GA 08535‐15LE29’ adapted to Georgia and the U.S. southeast region

Mergoum, M., Johnson, J., Buck, J., Buntin, G. D., Sutton, S., Lopez, B., … Cowger, C. (2022, May 28). Journal of Plant Registrations, Vol. 5.

Evaluation of Methods for Measuring Fusarium-Damaged Kernels of Wheat

Ackerman, A. J., Holmes, R., Gaskins, E., Jordan, K. E., Hicks, D. S., Fitzgerald, J., … Boyles, R. E. (2022, February 21). Agronomy.

Evaluation of a Model for Predicting Onset of Septoria nodorum Blotch in Winter Wheat

Adhikari, U., Cowger, C., & Ojiambo, P. S. (2022, September 22). Plant Disease, Vol. 107, pp. 1122–1130.

Global genomic analyses of wheat powdery mildew reveal association of pathogen spread with historical human migration and trade

Sotiropoulos, A. G., Arango-Isaza, E., Ban, T., Barbieri, C., Bourras, S., Cowger, C., … Wicker, T. (2022, July 26). Nature Communications, Vol. 13.

Infection timing affects Fusarium poae colonization of bread wheat spikes and mycotoxin accumulation in the grain

Tini, F., Covarelli, L., Cowger, C., Sulyok, M., Benincasa, P., & Beccari, G. (2022, May 10). Journal of the Science of Food and Agriculture, Vol. 6.

Virulence of Blumeria graminis f. sp. tritici in Brazil, South Africa, Turkey, Russia, and Australia

Kloppe, T., Boshoff, W., Pretorius, Z., Lesch, D., Akin, B., Morgounov, A., … Cowger, C. (2022, August 1). Frontiers in Plant Science, Vol. 13.

Pythium spp. Associated with Root Rot and Stunting of Winter Crops in North Carolina

Reeves, E. R., Kerns, J., Cowger, C., & Shew, B. B. (2021, May 14). Plant Disease, Vol. 105, pp. 3433–3442.

A new soft red winter wheat cultivar, ‘GA 07353‐14E19’, adapted to Georgia and the U.S. Southeast environments

Mergoum, M., Johnson, J. W., Buck, J. W., Sutton, S., Lopez, B., Bland, D., … Cambron, S. E. (2021, April 29). Journal of Plant Registrations, Vol. 15, pp. 337–344.

Sensitivity of the U.S. Wheat Powdery Mildew Population to Quinone Outside Inhibitor Fungicides and Determination of the Complete Blumeria graminis f. sp. tritici Cytochrome b Gene

Cowger, C., Meyers, E., & Whetten, R. (2021, June 22). Phytopathology, Vol. 112, pp. 249–260.

Soft red winter wheat ‘GA 051207‐14E53’: Adapted cultivar to Georgia and the U.S. Southeast region

Mergoum, M., Johnson, J. W., Buck, J. W., Sutton, S., Lopez, B., Bland, D., … Boyles, R. (2021, January 1). Journal of Plant Registrations, Vol. 15, pp. 132–139.

Virulence structure of Blumeria graminis f. sp. tritici, the causal agent of wheat powdery mildew, in Ontario, Canada, in 2018 and 2019

Xue, A. G., Lim, S., Chen, Y., Humphreys, G., Cao, W., Menzies, J., … Serajazari, M. (2021, April 12). Canadian Journal of Plant Pathology, Vol. 5.

‘GA JT141‐14E45’: A new soft red winter wheat cultivar adapted to Georgia and the U.S. Southeast region

Mergoum, M., Johnson, J. W., Buck, J. W., Sutton, S., Lopez, B., Bland, D., … Cambron, S. E. (2021, August 4). Journal of Plant Registrations, Vol. 8.

Pythium spp. Associated with Root Rot and Stunting of Winter Wheat in North Carolina

Reeves, E. R., Kerns, J. P., Cowger, C., & Shew, B. B. (2020, November 19). Plant Disease, Vol. 105, pp. 986–996.

Regional and field-specific differences in Fusarium species and mycotoxins associated with blighted North Carolina wheat

Cowger, C., Ward, T. J., Nilsson, K., Arellano, C., McCormick, S. P., & Busman, M. (2020, March 19). International Journal of Food Microbiology, Vol. 323, p. 108594.

Role of Effector-Sensitivity Gene Interactions and Durability of Quantitative Resistance to Septoria Nodorum Blotch in Eastern U.S. Wheat

Cowger, C., Ward, B., Brown-Guedira, G., & Brown, J. K. M. (2020, March 6). Frontiers in Plant Science, Vol. 11.

Sensitivity of Fusarium graminearum to Metconazole and Tebuconazole Fungicides Before and After Widespread Use in Wheat in the United States

Anderson, N. R., Freije, A. N., Bergstrom, G. C., Bradley, C. A., Cowger, C., Faske, T., … Wise, K. A. (2020, January 1). Plant Health Progress, Vol. 21, pp. 85–90.

Timing of Susceptibility to Fusarium Head Blight in Winter Wheat

Cowger, C., Beccari, G., & Dong, Y. (2020, May 12). Plant Disease, Vol. 104, pp. 2928–2939.

Disease Management and Estimated Effects on DON (Deoxynivalenol) Contamination in Fusarium Infested Barley

McKee, G., Cowger, C., Dill-Macky, R., Friskop, A., Gautam, P., Ransom, J., & Wilson, W. (2019, July 13). Agriculture, Vol. 9, p. 155.

Durability of Quantitative Resistance in Crops: Greater Than We Know?

Cowger, C., & Brown, J. K. M. (2019, June 17). Annual Review of Phytopathology, Vol. 57, pp. 253–277.

Local adaptation drives the diversification of effectors in the fungal wheat pathogen Parastagonospora nodorum in the United States

Richards, J. K., Stukenbrock, E. H., Carpenter, J., Liu, Z., Cowger, C., Faris, J. D., & Friesen, T. L. (2019, May 31). BioRxiv (Cold Spring Harbor Laboratory), Vol. 5.

Local adaptation drives the diversification of effectors in the fungal wheat pathogen Parastagonospora nodorum in the United States

Richards, J. K., Stukenbrock, E. H., Carpenter, J., Liu, Z., Cowger, C., Faris, J. D., & Friesen, T. L. (2019, October 18). (D. R. Matute, Ed.). PLoS Genetics, Vol. 15, p. e1008223.

Managing Fusarium Head Blight in Winter Barley With Cultivar Resistance and Fungicide

Cowger, C., Arellano, C., Marshall, D., & Fitzgerald, J. (2019, February 11). Plant Disease, Vol. 103, pp. 1858–1864.

Managing a Destructive, Episodic Crop Disease: A National Survey of Wheat and Barley Growers’ Experience With Fusarium Head Blight

Cowger, C., Smith, J., Boos, D., Bradley, C. A., Ransom, J., & Bergstrom, G. C. (2019, September 30). Plant Disease, Vol. 104, pp. 634–648.

Sensitivity of the U.S. Blumeria graminis f. sp. tritici Population to Demethylation Inhibitor Fungicides

Meyers, E., Arellano, C., & Cowger, C. (2019, July 29). Plant Disease, Vol. 103, pp. 3108–3116.

Distinct domains of the AVRPM3^A2/F2 avirulence protein from wheat powdery mildew are involved in immune receptor recognition and putative effector function

McNally, K. E., Menardo, F., Lüthi, L., Praz, C. R., Müller, M. C., Kunz, L., … Keller, B. (2018, February 17). New Phytologist, Vol. 218, pp. 681–695.

Effect of wheat infection timing on Fusarium head blight causal agents and secondary metabolites in grain

Beccari, G., Arellano, C., Covarelli, L., Tini, F., Sulyok, M., & Cowger, C. (2018, October 17). International Journal of Food Microbiology, Vol. 290, pp. 214–225.

Regional differences in the composition of Fusarium Head Blight pathogens and mycotoxins associated with wheat in Mexico

Cerón-Bustamante, M., Ward, T. J., Kelly, A., Vaughan, M. M., McCormick, S. P., Cowger, C., … Nava-Díaz, C. (2018, March 16). International Journal of Food Microbiology, Vol. 273, pp. 11–19.

Registration of Two Wheat Germplasm Lines Fixed for Pm58

Wiersma, A. T., Whetten, R. B., Zhang, G., Sehgal, S. K., Kolb, F. L., Poland, J. A., … Olson, E. L. (2018, January 18). Journal of Plant Registrations, Vol. 12, pp. 270–273.

A Model for Predicting Onset of Stagonospora nodorum Blotch in Winter Wheat Based on Preplanting and Weather Factors

Mehra, L. K., Cowger, C., & Ojiambo, P. S. (2017, February 7). Phytopathology, Vol. 107, pp. 635–644.

Identification of Pm58 from Aegilops tauschii

Wiersma, A. T., Pulman, J. A., Brown, L. K., Cowger, C., & Olson, E. L. (2017, March 2). Theoretical and Applied Genetics, Vol. 130, pp. 1123–1133.

Re‐Engineering of the Pm21 Transfer from Haynaldia villosa to Bread Wheat by Induced Homoeologous Recombination

Lukaszewski, A. J., & Cowger, C. (2017, June 15). Crop Science, Vol. 57, pp. 2590–2594.

Understanding Yield Loss and Pathogen Biology to Improve Disease Management: Septoria Nodorum Blotch - A Case Study in Wheat

Ficke, A., Cowger, C., Bergstrom, G., & Brodal, G. (2017, November 29). Plant Disease, Vol. 102, pp. 696–707.

Virulence Differences in Blumeria graminis f. sp. tritici from the Central and Eastern United States

Cowger, C., Mehra, L., Arellano, C., Meyers, E., & Murphy, J. P. (2017, October 30). Phytopathology, Vol. 108, pp. 402–411.

Virulence of Egyptian Blumeria graminis f. sp. tritici Population and Response of Egyptian Wheat Cultivars

Abdelrhim, A., Abd-Alla, H. M., Abdou, E.-S., Ismail, M. E., & Cowger, C. (2017, September 25). Plant Disease, Vol. 102, pp. 391–397.

Differentiation Among Blumeria graminis f. sp. tritici Isolates Originating from Wild Versus Domesticated Triticum Species in Israel

Ben-David, R., Parks, R., Dinoor, A., Kosman, E., Wicker, T., Keller, B., & Cowger, C. (2016, March 28). Phytopathology, Vol. 106, pp. 861–870.

Mapping of Fusarium Head Blight Resistance Quantitative Trait Loci in Winter Wheat Cultivar NC‐Neuse

Petersen, S., Lyerly, J. H., Maloney, P. V., Brown‐Guedira, G., Cowger, C., Costa, J. M., … Murphy, J. P. (2016, May 27). Crop Science, Vol. 56, pp. 1473–1483.

Profitability of Integrated Management of Fusarium Head Blight in North Carolina Winter Wheat

Cowger, C., Weisz, R., Arellano, C., & Murphy, P. (2016, April 25). Phytopathology, Vol. 106, pp. 814–823.

The geographic distribution and complex evolutionary history of the NX-2 trichothecene chemotype from Fusarium graminearum

Kelly, A., Proctor, R. H., Belzile, F., Chulze, S. N., Clear, R. M., Cowger, C., … Ward, T. J. (2016, August 5). Fungal Genetics and Biology, Vol. 95, pp. 39–48.

Validation of Fusarium Head Blight Resistance QTL in US Winter Wheat

Petersen, S., Lyerly, J. H., McKendry, A. L., Islam, M. S., Brown‐Guedira, G., Cowger, C., … Murphy, J. P. (2016, December 2). Crop Science, Vol. 57, pp. 1–12.

Quantifying the Effects of Wheat Residue on Severity of Stagonospora nodorum Blotch and Yield in Winter Wheat

Mehra, L. K., Cowger, C., Weisz, R., & Ojiambo, P. S. (2015, July 13). Phytopathology, Vol. 105, pp. 1417–1426.

Structure and Migration in U.S. Blumeria graminis f. sp. tritici Populations

Cowger, C., Parks, R., & Kosman, E. (2015, December 4). Phytopathology, Vol. 106, pp. 295–304.

Mapping of powdery mildew resistance gene Pm53 introgressed from Aegilops speltoides into soft red winter wheat

Petersen, S., Lyerly, J. H., Worthington, M. L., Parks, W. R., Cowger, C., Marshall, D. S., … Murphy, J. P. (2014, November 26). Theoretical and Applied Genetics, Vol. 128, pp. 303–312.

Molecular characterization of a new powdery mildew resistance gene Pm54 in soft red winter wheat

Hao, Y. F., Parks, R., Cowger, C., Chen, Z. B., Wang, Y. Y., Bland, D., … al. (2014, December 22). Theoretical and Applied Genetics, Vol. 128, pp. 465–476.

Genes Conferring Sensitivity to Stagonospora nodorum Necrotrophic Effectors in Stagonospora Nodorum Blotch-Susceptible U.S. Wheat Cultivars

Bertucci, M., Brown-Guedira, G., Murphy, J. P., & Cowger, C. (2013, December 18). Plant Disease, Vol. 98, pp. 746–753.

Fusarium graminearumInfection and Deoxynivalenol Concentrations During Development of Wheat Spikes

Cowger, C., & Arellano, C. (2012, December 19). Phytopathology, Vol. 103, pp. 460–471.

Novel Necrotrophic Effectors from Stagonospora nodorum and Corresponding Host Sensitivities in Winter Wheat Germplasm in the Southeastern United States

Crook, A. D., Friesen, T. L., Liu, Z. H., Ojiambo, P. S., & Cowger, C. (2012, April 11). Phytopathology, Vol. 5, pp. 498–505.

A Degree-Day Model for the Latent Period of Stagonospora nodorum Blotch in Winter Wheat

Zearfoss, A. D., Cowger, C., & Ojiambo, P. S. (2011, January 10). Plant Disease, Vol. 95, pp. 561–567.

Permanent genetic resources added to molecular ecology resources database 1 December 2010-31 January 2011

Molecular Ecology Resources, 11(3), 586–589.

Rye-derived powdery mildew resistance gene Pm8 in wheat is suppressed by the Pm3 locus

McIntosh, R. A., Zhang, P., Cowger, C., Parks, R., Lagudah, E. S., & Hoxha, S. (2011, April 19). Theoretical and Applied Genetics, Vol. 123, pp. 359–367.

Trichothecene genotypes of Gibberella zeae from winter wheat fields in the eastern USA

Schmale, D. G., Wood‐Jones, A. K., Cowger, C., Bergstrom, G. C., & Arellano, C. (2011, March 4). Plant Pathology, Vol. 60, pp. 909–917.

Maize Debris Increases Barley Yellow Dwarf Virus Severity in North Carolina Winter Wheat

Cowger, C., Weisz, R., Anderson, J. M., & Horton, J. R. (2010, March 1). Agronomy Journal, Vol. 102, pp. 688–695.

MlAB10: A triticum turgidum subsp dicoccoides derived powdery mildew resistance gene identified in common wheat

Crop Science, 50(6), 2261–2267.

Plump Kernels with High Deoxynivalenol Linked to Late Gibberella zeae Infection and Marginal Disease Conditions in Winter Wheat

Cowger, C., & Arrellano, C. (2010, June 7). Phytopathology, Vol. 100, pp. 719–728.

Registration of the Soft Red Winter Wheat Germplasm MD01W233–06–1 Resistant to Fusarium Head Blight

Costa, J. M., Bockelman, H. E., Brown-Guedira, G., Cambron, S. E., Chen, X., Cooper, A., … Souza, E. (2010, August 11). Journal of Plant Registrations, Vol. 4, pp. 255–260.

Aerial Dispersal and Multiple-Scale Spread of Epidemic Disease

Mundt, C. C., Sackett, K. E., Wallace, L. R. D., Cowger, C., & Dudley, J. P. (2009, December 1). EcoHealth, Vol. 6, pp. 546–552.

Appearance of Powdery Mildew of Wheat Caused by Blumeria graminis f. sp. tritici on Pm17-Bearing Cultivars in North Carolina

Cowger, C., Parks, R., & Marshall, D. (2009, October 9). Plant Disease, Vol. 93, pp. 1219–1219.

Long‐Distance Dispersal and Accelerating Waves of Disease: Empirical Relationships

Mundt, C. C., Sackett, K. E., Wallace, L. R. D., Cowger, C., & Dudley, J. P. (2009, February 27). The American Naturalist, Vol. 173, pp. 456–466.

MlAG12: a Triticum timopheevii-derived powdery mildew resistance gene in common wheat on chromosome 7AL

Maxwell, J. J., Lyerly, J. H., Cowger, C., Marshall, D., Brown-Guedira, G., & Murphy, J. P. (2009, September 17). Theoretical and Applied Genetics, Vol. 119, pp. 1489–1495.

Population Genetic Analysis of an Eastern U.S. Wheat Powdery Mildew Population Reveals Geographic Subdivision and Recent Common Ancestry with U.K. and Israeli Populations

Parks, R., Carbone, I., Murphy, J. P., & Cowger, C. (2009, June 12). Phytopathology, Vol. 99, pp. 840–849.

Post-Anthesis Moisture Increased Fusarium Head Blight and Deoxynivalenol Levels in North Carolina Winter Wheat

Cowger, C., Patton-Özkurt, J., Brown-Guedira, G., & Perugini, L. (2009, March 9). Phytopathology, Vol. 99, pp. 320–327.

Frequency of Sexual Recombination by Mycosphaerella graminicola in Mild and Severe Epidemics

Cowger, C., Brunner, P. C., & Mundt, C. C. (2008, June 11). Phytopathology, Vol. 98, pp. 752–759.

Virulence Structure of the Eastern U.S. Wheat Powdery Mildew Population

Parks, R., Carbone, I., Murphy, J. P., Marshall, D., & Cowger, C. (2008, June 11). Plant Disease, Vol. 92, pp. 1074–1082.

Winter Wheat Blends (Mixtures) Produce a Yield Advantage in North Carolina

Cowger, C., & Weisz, R. (2008, January 1). Agronomy Journal, Vol. 100, pp. 169–177.

Artificial Inoculation of Wheat for Selecting Resistance to Stagonospora Nodorum Blotch

Cowger, C., & Murphy, J. P. (2007, May 1). Plant Disease, Vol. 91, pp. 539–545.

Frequency of Phaeosphaeria nodorum, the Sexual Stage of Stagonospora nodorum, on Winter Wheat in North Carolina

Cowger, C., & Silva-Rojas, H. V. (2006, August 1). Phytopathology, Vol. 96, pp. 860–866.

The Southeastern U.S. Fusarium Head Blight Epidemic of 2003

Cowger, C., & Sutton, A. L. (2005, January 1). Plant Health Progress, p. 1.

Velocity of spread of wheat stripe rust epidemics

Phytopathology, Vol. 95, pp. 972–982.